Driving mechanism



G: E. WHITE.

DRIVING MECHANISM,

APPLICATION FILED M Feb. 14, 1922. SHEETS-SHEET I.

AY 121 I919.

Patented 1. 4IIIII: 7/1/4452 "7 III-2:55?

G. E. WHITE.

DRIVING MECHANISM.

APPLICATION FILED MAY 12. 1919.

Patented Feb. 14, 1922.

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UNITED STATES PATENT OFFICE.

GILBERT E. WHITE, OF DES MOINES, IOWA.

DRIVING MECHANISM.

Application filed May 12,

To all whom it may concern citizen of the United States of America,

and resident of Des Moines, Polk County, Iowa, have invented a new and useful Driving- Mechanism, of which the following is a specification.

The object of this invention is to provide improved means for transforming continuous rotary motion into uniform intermlttent rotary motion in opposite directions.

A further object of this invention is to provide improved means for driving a gear, or similar element intermittently in opposite rotary directions through the use of opposed. intermittently-engaging mutilated gear or similar elements having a rotary motion continuously in one direction.

A further object of this invention is to provide an improved driving mechanism and housing therefor.

A further object of this invention is to provide an improved driving mechanism having an improved means of connection between a driven element and a shaft.

My invention consists in the construction, arrangement and combination of elements hereinafter set forth, pointed out in my claims and illustrated by the accompanying drawing, in which Figure 1 is a side elevation showing my improved device in one position for practical use. Figure 2 is a vertical section of the device on the indicated line 2-2 of Figure 3. Figure 3 is a vertical section of the device on the indicatedline 33 of Figure 2. Figure 4 is a horizontal section of the device on. the indicated line 4-4 of Figure 3, the connecting bolts being removed from the housing and the driving elements being shown in full lines. Figure 5 is a horizontal section on the indicated line 5-5 of Figure 3. Figure 6 is an enlarged detail vertical sectional view illustrating a bearing and other elements shown in Figure 2.

In the construction of the device as shown, a housing is provided having a base member 10 and a cap member 11. The base member 10 is formed with a base flange 12 apertured to receive bolts 13 whereby it may be secured to a support 14. The bottom of the base member 10 preferably is thicker than the wallsthereof and is formed with a central hole in which is mounted rigidly a sleeve or tubular bearing member 15.

Specification of Letters Patent. Patented Feb, 14, 1922,

1919. Serial No. 296,316.

The housing may be formed of cast metal; but the sleeve 15 preferably is of steel, is fitted tightly in the hole in the base member and is smooth to provide a bearing on its inner surface. The sleeve 15 projects above the bottom of the base member 10 and a shaft or spindle 16 is mounted loosely and for rotation in said sleeve. The upper end portion of the shaft or spindle 16 is angular in cross-section and is tapering from a line adjacent to the upper end of the sleeve. The tapering upper end of the spindle 16 also is formed with a tapped axial bore. A ball race is formed in the bottom of the base member 10 surrounding the hole therein and concentric therewith and balls 17 are mounted in said race. A driven element, such as a bevel gear 18 is mounted in the lower portion of the base member 10 and is formed with a ball race on its lower face mating the race in the bottom and adapted to receive and ride on the balls 17. The teeth of the bevel gear 18 are uppermost and said gear is formed with a cavity centrally and opening downwardly and adapted loosely to receive and revolve on the periphery of the upper end of the sleeve 15. The gear 18 also is formed with a tapering bore, angular in cross-see tion, and this bore is an upward extension of and smaller in diameter than the cavity surrounding the sleeve, thus forming a shoulder at the line of demarkation between the cavity and bore, and a washer 19, preferably of felt, is mounted in the cavity, around the spindle 16 and overlies the upper end of the sleeve. The tapering angular upper end of the shaft Or spindle 16 is received in the tapering angular bore of the gear, thus providing a connection of great strength and stability. The bore of the gear 18 is continued upwardly in circular form in cross-section and a screw 20 is mounted loosely in said circular por tion of the bore and is seated in the tapped bore of the spindle 16. Any desired and suitable element to be operated, may be mounted on or connected to the spindle 16, such as the dolly of a washing machine, which is common and well known. The sleeve gives stability and balance to the gear 18 and, together with the washer 19, prevents the leakage of lubricant from the housing through the support. The end walls of the base member 10 are formed with bearings 21, 22 in registry, the axis common to the bearings being at right angles tion of the shaft said gears are alternately engaged with the gear 18. Furthermore, the segmental bevel gears 24, are arranged on opposite sides of the axis of the gear 18, so that in therotation of the shaft 23, and consequent movement of the gears 24, 25 through their orbits said latter gears will alternately engage the teeth of the gear 18 on opposite sides of said axis and ettect a uniform intermittent rotary motion of the gear 18 in opposite directions. The means employed to fasten the segmental gears 24-, 25 to the shaft 23, is as follows: A key-seat 26 (one for each gear) is cut in the shaft 23 and a key 27 (one for each gear) is mounted loosely in said seat and a corresponding notch or seat 28 in the hub of the gear. A tapped hole is formed in and radially of each hub and a set screw- 29 is mounted in each hole and presses the key 27 into its seat 26and holds it seciirely in place during the operation of the device. The shaft 23 may be driven in any suitable manner, such as by extraneous gearing (not shown) acting on a bevel gear 30 on the shaft outside the housing, or by belting to a pulley 31 on the shaft outside said housing, or by turning said pulley by means of a handle or wrist-pin 32, by hand or otherwise. The cap member 11 of the housing may be secured in any desired manner, such as by stovebolts 33 mounted in and. connecting notched ears 34, 85 on the cap and base respectively adjacent to the line of separation between said last named elements.

The bottom of the housing may be placed in any desired relation to a horizontal plane and any suitable elements may be substituted for the gears in the housing, and the device may be employed for any suitable purpose.

I claim as my invention 1. In a driving mechanism, a base member formed with a bottom having a central hole, a sleeve mounted rigidly in said hole and projecting at both ends from said base bottom, a driven element surmounting said sleeve, a hat washer interposed between said sleeve and element, and resting on the upper end of said sleeve, a spindle journaled in said sleeve, and means for connecting said spindle and element.

2. In a driving mechanism, base member formed with a bottom having a central hole, a sleeve mounted rigidly in said hole, and projecting at both ends from said base bottom, a driven element surmounting said sleeve, said element being formed with a circular bore opening to its lower face, said sleeve projecting within the bore of said element, a flat washer interposed between said sleeve and element and resting on the upper end of said sleeve, a spindle journaled in said sleeve, and means tor connecting said spindle and element.

3. In a drlving mechanism, coupling means for a driven element-and spindle,

said driven element being formed with a cavity within which said spindle projects, said element also being formed with a tapering bore angular in cross-section communicating with said cavity and also being formed with a hole I communicating with said tapering bore, said spindle being formed with a tapering end portion said tapering bore, the tapering end portion of the spindle being formed with a tapped bore, and a screw extending through the hole of the driven element and seated in said tapped bore.

Signed at Fairmont, in the county'oit' of hial'ch, 1919.

oiLBnRT WHITE.

fitting.

9O Garfield and Stateof Oklahoma, this 29 day 

